EP0356854A3 - Treatment of inorganic salts contaminated with organic compounds - Google Patents

Treatment of inorganic salts contaminated with organic compounds

Info

Publication number
EP0356854A3
EP0356854A3 EP19890115346 EP89115346A EP0356854A3 EP 0356854 A3 EP0356854 A3 EP 0356854A3 EP 19890115346 EP19890115346 EP 19890115346 EP 89115346 A EP89115346 A EP 89115346A EP 0356854 A3 EP0356854 A3 EP 0356854A3
Authority
EP
European Patent Office
Prior art keywords
treatment
inorganic salts
contaminated
organic compounds
salt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890115346
Other languages
German (de)
French (fr)
Other versions
EP0356854A2 (en
EP0356854B1 (en
Inventor
Benny B. Gammill
Hiroshi Sawa
Tamio Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of EP0356854A2 publication Critical patent/EP0356854A2/en
Publication of EP0356854A3 publication Critical patent/EP0356854A3/en
Application granted granted Critical
Publication of EP0356854B1 publication Critical patent/EP0356854B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C01D3/18—Purification with selective solvents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D17/00—Rubidium, caesium or francium compounds
    • C01D17/003—Compounds of alkali metals

Abstract

Inorganic salts contaminated with relatively high boiling organic chemical contaminants are removed by washing the contaminated salt with a solvent which has a boiling point below the organic chemical contaminant, removing the salt from the wash solvent and drying the thus treated inorganic salt. This method is particularly suitable in the treatment of the alkali metal halide produced in the manufacture of epoxy resins.
EP89115346A 1988-08-29 1989-08-19 Treatment of inorganic salts contaminated with organic compounds Expired - Lifetime EP0356854B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23802788A 1988-08-29 1988-08-29
US238027 1988-08-29

Publications (3)

Publication Number Publication Date
EP0356854A2 EP0356854A2 (en) 1990-03-07
EP0356854A3 true EP0356854A3 (en) 1991-05-08
EP0356854B1 EP0356854B1 (en) 1993-09-08

Family

ID=22896189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115346A Expired - Lifetime EP0356854B1 (en) 1988-08-29 1989-08-19 Treatment of inorganic salts contaminated with organic compounds

Country Status (5)

Country Link
EP (1) EP0356854B1 (en)
JP (1) JPH02102703A (en)
AU (1) AU613518B2 (en)
BR (1) BR8904372A (en)
DE (1) DE68908986T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006016267A (en) * 2004-07-02 2006-01-19 Asahi Kasei Chemicals Corp Removal of organic material contained in salt water by means of filtration
KR20100068246A (en) * 2007-08-23 2010-06-22 다우 글로벌 테크놀로지스 인크. Brine purification
EP2183188B1 (en) * 2007-08-23 2013-10-23 Dow Global Technologies LLC Process and apparatus for purification of industrial brine
JP5651482B2 (en) * 2008-02-22 2015-01-14 ダウ グローバル テクノロジーズ エルエルシー Method and apparatus for purifying a solid salt composition
WO2010071700A1 (en) 2008-12-18 2010-06-24 Dow Global Technologies Inc. Method of separating solid salt from epoxy resin solutions
CN102325820A (en) 2009-02-26 2012-01-18 陶氏环球技术有限责任公司 Epoxy resin production

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662948A (en) * 1984-11-28 1987-05-05 Electric Power Research Institute On-site removal of PCB and dioxins from soils
WO1988009199A1 (en) * 1987-05-26 1988-12-01 Werner Steiner A process for the removal of organic contaminants from solids and sediments

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847496A (en) * 1970-12-11 1974-11-12 J Stankiewicz Traffic network for urban settlement
US3904585A (en) * 1974-02-14 1975-09-09 Grace W R & Co Process for recovering glycine and beta-alanine from sodium sulfate solutions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662948A (en) * 1984-11-28 1987-05-05 Electric Power Research Institute On-site removal of PCB and dioxins from soils
WO1988009199A1 (en) * 1987-05-26 1988-12-01 Werner Steiner A process for the removal of organic contaminants from solids and sediments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 89, no. 4, 24 July 1978 Columbus, Ohio, USA Kremenskaya I.N. et al.: "Removal of organic contaminants after extraction with 8-hydroxyquinoline" page 139; left-hand column; ref. no. 2679& Zh.Prikl.Khim.(Leningrad) 1978, 51(2), 475 *

Also Published As

Publication number Publication date
JPH02102703A (en) 1990-04-16
AU613518B2 (en) 1991-08-01
DE68908986D1 (en) 1993-10-14
EP0356854A2 (en) 1990-03-07
AU4083289A (en) 1990-03-01
DE68908986T2 (en) 1994-03-24
BR8904372A (en) 1990-04-17
EP0356854B1 (en) 1993-09-08

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